BusyBox provides a single binary that includes versions of a large number
of system commands, including a shell. This can be very useful for
recovering from certain types of system failures, particularly those
involving broken shared libraries.A buffer underflow flaw was found in the way the uncompress utility of
BusyBox expanded certain archive files compressed using Lempel-Ziv
compression. If a user were tricked into expanding a specially-crafted
archive file with uncompress, it could cause BusyBox to crash or,
potentially, execute arbitrary code with the privileges of the user running
BusyBox. (CVE-2006-1168)The BusyBox DHCP client, udhcpc, did not sufficiently sanitize certain
options provided in DHCP server replies, such as the client hostname. A
malicious DHCP server could send such an option with a specially-crafted
value to a DHCP client. If this option's value was saved on the client
system, and then later insecurely evaluated by a process that assumes the
option is trusted, it could lead to arbitrary code execution with the
privileges of that process. Note: udhcpc is not used on Red Hat Enterprise
Linux by default, and no DHCP client script is provided with the busybox
packages. (CVE-2011-2716)This update also fixes the following bugs:* Prior to this update, the cp command wrongly returned the exit code 0 to
indicate success if a device ran out of space while attempting to copy
files of more than 4 gigabytes. This update modifies BusyBox, so that in
such situations, the exit code 1 is returned. Now, the cp command shows
correctly whether a process failed. (BZ#689659)* Prior to this update, the findfs command failed to check all existing
block devices on a system with thousands of block device nodes in "/dev/".
This update modifies BusyBox so that findfs checks all block devices even
in this case. (BZ#756723)All users of busybox are advised to upgrade to these updated packages,
which correct these issues. Create Date: 2012-02-21 Last Update Date: 2012-02-21

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